BAEL-2168 Java EE 7 Batch Processing (#5645)

* jberet batch

* Batch Understanding

* partition

* exception

* some more changes

jee-7/src/main/java/com/baeldung/batch/understanding/SimpleBatchLet.java

@@ -0,0 +1,13 @@
+package com.baeldung.batch.understanding;
+
+import javax.batch.api.AbstractBatchlet;
+import javax.batch.runtime.BatchStatus;
+import javax.inject.Named;
+
+@Named
+public class SimpleBatchLet extends AbstractBatchlet {
+    @Override
+    public String process() throws Exception {
+        return BatchStatus.FAILED.toString();
+    }
+}